Roller chute spring for typesetting machines



April 30, 1929. Q c. H. ALLAN 1,710,852

ROLLER CHUTE SPRING FOR TYPESETTING MACHINES Filed April e, 1928 IINVENTOR. JL Charles 11.4110

:L thereunder.

Patented Apr. 30, 1929.

1,710,852 PATENT OFFICE.

CHARLES H. ALLAN, OF RYEGATE, MONTANA.

ROLLER CHUTE SPRING FOR TYPESETTING MACHINES.

Application filed April 6,

This present invention lies in providing a chute spring with a rotatableelement or roller at its lower end adapted to contact with a minimum offriction with a matrix passing Since the matrix in passing away from theroller causes the latter to spin, I provide as a further feature abraking device for the rotatable element, the braking device beingnormally operative but bein ing released while a matrix is in contactwith the rotatable element.

The purpose of the present invention, is to eliminate the possibility ofclogging in the chute. lVith the devices of the prior art such cloggingnot infrequently occurs, due to the fact that when the matrix strikesthe assembler matrix rod it is still in contact with the chute spring,and if the matrix is dirty or gummy, or the star wheel worn, the fric-20 tional engagement of the matrix by the chute spring is not overcome.I have found that by providing the chute spring with a roller at thisclogging point stoppages are absolutely avoided. due to the minimumresistance offered to the matrix by the roller.

An embodiment of my invention is shown in the accompanying drawings,wherein Figure 1 is a side elevation of my improved chute spring and theassociated parts of a typesetting machine.

Figure 2 is a top plan view of the chute spring.

l'liguro 3 is a section on the line 33 of Figure 2, and

liiguro 4 is a section on the line 4-4 of Figure 2.

Referring now to the drawings, it will be seen that the chute spring,which is designutod as a whole by the numeral is secured at its upperend in the usual manner to a fixed part 11 of the machine so that itsfoot extends in proximity with slide 11, which receives the matricesfrom the belt 12. Referring to Figures 2 and 3 in particular, the chutespring 10 comprises a main upper portion 13 and a separable lower endportion 14. The end portion 14 is secured to the main portion 13 bymeans of lateral tongues 15 and 16 and a central tongue 17 passed upthrough an aperture in the main portion. End portion 14 is bifurcated toform vertical walls 18 and 19, between which is supported a roller 20 bmeans of a spindle 21 journalled in the bifurcations. The main portionof element 14 underlies element 1928. Serial No. 268,000.

13 as is clearly shown in Figure 3, and in order to give the chutespring asmooth lower end surface a thickening piece 22 is secured toelement 13 by means of a rivet 23 and rivets 23'. The rivet 23 alsosecures in post tion a spring arm 24, which projects over and beyondroller 20, the free end24' of the spring arm being bent downwardly so astobe engaged by the matrix 25, Figure 1, while the latter is in contactwith roller 20.

Spring arm 24 is normally in contact with roller 20, but as the matrixpasses under the latter its upper surface engages and lifts end 24, sothat the arm is released from the roller and the latter may thus rotatefreely. The spring arm is made of very light material, and offers noappreciable resistance to the passage of the matrix. End 24' falls intothe bifurcation of the matrix as the latter passes out of contact withthe roller.

Roller 20 may be formed of any suitable material, but I prefer to makeit of hard fiber. Excessive wear of the spindle 21, and its bearings isrevented b the braking device 24, but if t ese parts become worn fromlong use they may be removed by simply detaching foot portion 14.

It will be understood that modifications as to detail will be ossiblewithout departin" from the spirit 0 my invention, as set fort in thefollowing claims.

I claim:

1. The combination with a chute spring for typesetting machines, ofrotatable means carried by said spring in position to contact with theupper face of a matrix passing thereunder.

2. The combination with a chute spring for typesetting machines, of aroller carried by said spring in position to contact with the upper faceof a matrix passing thereunder.

3. The combination with a chute spring for typesetting machines, thelower end of said spring being bifurcated, of a roller journaled betweensaid bifurcations in position to contact with the upper face of a matrixpassing thereunder.

4. The combination with a chute spring for type setting machines, saidspring including a detachable bifurcated lower end section, of a rollerjournaled between the bifurcations. of said end section in position tocontact with the upper face of a matrix passing thereunder.

5. The combination with a chute spring for typesetting machines, ofrotatable means carried by said spring in position to contact with theupper face of a matrix passing thereunder, and brake means for saidrotatable means.

6. The combination with a chute spring for typesetting machines, ofrotatable means carried by said spring in position to contact with theupper face of a matrix passing thereunder, and bralie means for saidrotatable means released by the matrix While the latter is in contactWith said rotatable means.

7. The combination with a chute spring for ty iiesett-ing machines, otrotatable means carried by said spring in position to contactwith theupper face of a matrix passing thereunder, yieldable means normallybearing against said rotatable means to restrain the rotation thereof,and means engaged by the matrix while the latter is in contact with saidrotatable means for releasing said yieldable means.

8. The combination With a chute spring for typesetting machines, of aroller carried by said spring in position to contact with the upper faceof a matrix passing thereunder, and a spring arm secured at one end tothe chute spring and extending over said roller in contact therewith,the free end of said spring arm being engaged by the matrix while thelatter in contact vith said roller to raise the arm from the roller.

In testimony whereof I have hereunto set my hand.

CHARLES H. ALLAN.

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